Improvement in refrigerators



G. H. CRSFIELD.

REFRIGERATOR.

No.186,2o0, Patented .13.11.16, 1877.

i M 0% MW @70% N. PETERS, PHOTO-L'NOGMPHER. WASHINGTON. D CA UNITEDSTATES PATENT OFFICE,

GEORGE H. ORISFIELD, OF YONKERS, NEW YORK.

,IMPROVEMENT INREFRIGERATORS.

Specification forming part of Letters Patent No. l86,200, dated January16, 1877 application ied March 25, 1876.

To all whom it may concern:

Beit known that I, GEORGE H. GElsEIELD,

of Yonkers, Westchester county, State of 4 top of the refrigerator, andthe other with the top of the ice-chamber. The bottom of this iuecommunicates with a passage from the bottom of the ice-chamber into therefrigerator. The cold air coming from the bottom of the ice-chamber,and passing into the refrigerator, draws the evaporated vapors from thesurface of the ice, aswell as the Warmer air from the upper part of therefrigerator, down through the division-Hue, where, being met by thecold current, they are condensed outside and apart from the ice, wherebya considerable saving of ice is effected.

The accompanying drawing represents a longitudinal section of -arefrigerator embodying my invention.

A is the refrigerator, to which entrance is obtained through the door D.In the after part of this refrigerator the ice-chamber B is arranged,extending the whole width of the refrigerator, and divided from the sameby the iue C. The ice is placed into this chamber B through an opening,E, made in the top ot' the box, and is supported upon a Wooden grate, J.From the bottom of the ice-chamber B a flue or passage, F, is arrangedinto the refrigerating-chamber A.

The upper part of the flue O, which divides the ice-chamber from therefrigerator, is provided with a partition-plate, L, dividing this flueinto two parts, n and m, the uem being connected with the top of theice-chamber B, and the Hue n with the upper part of therefrigerating-chamber A.

At the lowest part of the ue F openings a are made, passing through oneor both sides of the box, to carry oi the condensed vapors or Water. Thecold air passes from the bottom of the ice-chamber, through the flue F,into the refrigerator A, causing a draft, whereby the evaporation fromthe top of the ice in the chamber B is drawn through the passage m anddown the flue O. At the same time this cold air, passing from theice-chamber into the refrigerator A, displaces the warmer air in thesame, and which is drawn by the current oi at the top through thepassage n, and

down the flue O, being, on accountof the partition-plate L in the top ofthe flue O, prevented from passing into and upon the ice in the chamberB. The vapors from the icechamber B, and from the top of therefrigerator A, after passing down the flue C, meet the cold currentcoming from the bottom of ice-chamber at or near w, and are therecondensed, and the condensed Water is allowed to escape through theopenings at a.

By this arrangement a condenser is formed entirely apart from the ice,which is therefore not subjected to diiferent temperatures of air, inconsequence of which a great saving of ice is obtained.

The Y above described drawing oi of the vapors from the top of the'icechamber B, and from the top of the refrigerator A, and theircondensation outside and apart from the ice by their meeting of the coldcurrent in the due F, creates a continued current through therefrigerator and these iues.

What I claim as my invention, and desire to secure by Letters Patent,is-

The flue O between the refrigerator A and ice-chain ber B, provided witha partition-plate, L, dividing its upper part, one part, m,communicating with the top of the ice-chamber B, and the other part, n,with the top of the refrigerator A, in the manner and for the purposesubstantially as described.

GEO. H. GRISFIELD.

Witnesses:

HENRY E. RoEDER, J. B. NoNEs.

